strrat | 167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 01:02

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General

Target

167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar
Size

84KB
MD5

5acb5f7762f565fb8048d7eb2f68c30d
SHA1

9280824a7f831fee6a4c8b2f737892e9ef91a5ca
SHA256

167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34
SHA512

7e30e4d7a8653a995bef974447e79b44d552fa35e6966315089a2da3d6eeb22e10354ed733ae0b6e3d66ff55f5d7053540faf3784690b661269d29ee8f59d83e
SSDEEP

1536:7QKhXzU/FbhBxMOeWNgSmJyQhBFVv4WFJdiM+i8B:EKpU/dSlWNgSm4QJ2kdJ+

Score

10^/10

strrat persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat

Drops startup file 1 IoCs

Processes:

java.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

java.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar\""	java.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
3392	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

java.execmd.exe

description	pid	Process	procid_target
PID 2028 wrote to memory of 1744	2028	java.exe	87
PID 2028 wrote to memory of 1744	2028	java.exe	87
PID 2028 wrote to memory of 3216	2028	java.exe	88
PID 2028 wrote to memory of 3216	2028	java.exe	88
PID 1744 wrote to memory of 3392	1744	cmd.exe	91
PID 1744 wrote to memory of 3392	1744	cmd.exe	91

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1744
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3392
- C:\Program Files\Java\jre-1.8\bin\java.exe
  "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar"
  2⤵
  PID:3216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34.jar

Filesize
84KB

MD5
5acb5f7762f565fb8048d7eb2f68c30d

SHA1
9280824a7f831fee6a4c8b2f737892e9ef91a5ca

SHA256
167e8b53c7c1959f05a788d95982ff056591146e7b9711cd9e041347cf21db34

SHA512
7e30e4d7a8653a995bef974447e79b44d552fa35e6966315089a2da3d6eeb22e10354ed733ae0b6e3d66ff55f5d7053540faf3784690b661269d29ee8f59d83e

Download Submit
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
2b7e6d7a78f6990b41bb8ea0f3168917

SHA1
abe6285736dff97bf957061e5c1234a1c317d5c1

SHA256
224d29a9ee132cfad733b9d89abc717df21886be72d8bd770a1a4d264c1e8c75

SHA512
dd592e9585a0cfc1335d0b0e751e8eedbef658a8f96676c3df6af292f2b77e998e048b261e0d6e85313e3ae90524cfe5e8984df72ff445191c1f870c48bdb812

Download Submit
memory/2028-34-0x000001F4B5D30000-0x000001F4B5D31000-memory.dmp

Filesize
4KB

Download
memory/2028-37-0x000001F4B7510000-0x000001F4B7780000-memory.dmp

Filesize
2.4MB

Download
memory/2028-20-0x000001F4B77C0000-0x000001F4B77D0000-memory.dmp

Filesize
64KB

Download
memory/2028-19-0x000001F4B77B0000-0x000001F4B77C0000-memory.dmp

Filesize
64KB

Download
memory/2028-22-0x000001F4B77D0000-0x000001F4B77E0000-memory.dmp

Filesize
64KB

Download
memory/2028-26-0x000001F4B77F0000-0x000001F4B7800000-memory.dmp

Filesize
64KB

Download
memory/2028-25-0x000001F4B77E0000-0x000001F4B77F0000-memory.dmp

Filesize
64KB

Download
memory/2028-28-0x000001F4B7800000-0x000001F4B7810000-memory.dmp

Filesize
64KB

Download
memory/2028-13-0x000001F4B7780000-0x000001F4B7790000-memory.dmp

Filesize
64KB

Download
memory/2028-14-0x000001F4B7790000-0x000001F4B77A0000-memory.dmp

Filesize
64KB

Download
memory/2028-39-0x000001F4B7790000-0x000001F4B77A0000-memory.dmp

Filesize
64KB

Download
memory/2028-16-0x000001F4B77A0000-0x000001F4B77B0000-memory.dmp

Filesize
64KB

Download
memory/2028-40-0x000001F4B77A0000-0x000001F4B77B0000-memory.dmp

Filesize
64KB

Download
memory/2028-46-0x000001F4B7800000-0x000001F4B7810000-memory.dmp

Filesize
64KB

Download
memory/2028-45-0x000001F4B77F0000-0x000001F4B7800000-memory.dmp

Filesize
64KB

Download
memory/2028-44-0x000001F4B77E0000-0x000001F4B77F0000-memory.dmp

Filesize
64KB

Download
memory/2028-43-0x000001F4B77D0000-0x000001F4B77E0000-memory.dmp

Filesize
64KB

Download
memory/2028-42-0x000001F4B77C0000-0x000001F4B77D0000-memory.dmp

Filesize
64KB

Download
memory/2028-41-0x000001F4B77B0000-0x000001F4B77C0000-memory.dmp

Filesize
64KB

Download
memory/2028-38-0x000001F4B7780000-0x000001F4B7790000-memory.dmp

Filesize
64KB

Download
memory/2028-2-0x000001F4B7510000-0x000001F4B7780000-memory.dmp

Filesize
2.4MB

Download
memory/3216-50-0x0000017880000000-0x0000017880270000-memory.dmp

Filesize
2.4MB

Download
memory/3216-61-0x0000017880270000-0x0000017880280000-memory.dmp

Filesize
64KB

Download
memory/3216-63-0x0000017880280000-0x0000017880290000-memory.dmp

Filesize
64KB

Download
memory/3216-65-0x0000017880290000-0x00000178802A0000-memory.dmp

Filesize
64KB

Download
memory/3216-67-0x00000178802A0000-0x00000178802B0000-memory.dmp

Filesize
64KB

Download
memory/3216-69-0x00000178802B0000-0x00000178802C0000-memory.dmp

Filesize
64KB

Download
memory/3216-74-0x00000178802D0000-0x00000178802E0000-memory.dmp

Filesize
64KB

Download
memory/3216-78-0x0000017880000000-0x0000017880270000-memory.dmp

Filesize
2.4MB

Download
memory/3216-77-0x00000178802E0000-0x00000178802F0000-memory.dmp

Filesize
64KB

Download
memory/3216-76-0x00000178802F0000-0x0000017880300000-memory.dmp

Filesize
64KB

Download
memory/3216-73-0x00000178802C0000-0x00000178802D0000-memory.dmp

Filesize
64KB

Download
memory/3216-79-0x00000178FD400000-0x00000178FD401000-memory.dmp

Filesize
4KB

Download
memory/3216-80-0x0000017880270000-0x0000017880280000-memory.dmp

Filesize
64KB

Download
memory/3216-81-0x0000017880280000-0x0000017880290000-memory.dmp

Filesize
64KB

Download
memory/3216-83-0x0000017880290000-0x00000178802A0000-memory.dmp

Filesize
64KB

Download
memory/3216-84-0x00000178802A0000-0x00000178802B0000-memory.dmp

Filesize
64KB

Download
memory/3216-85-0x00000178802B0000-0x00000178802C0000-memory.dmp

Filesize
64KB

Download
memory/3216-86-0x00000178802C0000-0x00000178802D0000-memory.dmp

Filesize
64KB

Download
memory/3216-87-0x00000178802D0000-0x00000178802E0000-memory.dmp

Filesize
64KB

Download
memory/3216-89-0x00000178802E0000-0x00000178802F0000-memory.dmp

Filesize
64KB

Download
memory/3216-88-0x00000178802F0000-0x0000017880300000-memory.dmp

Filesize
64KB

Download